2004 TOYOTA Camry Transponder Chip Key must be cut and programmed before it will work for your vehicle. Cutting and programming can be performed at an automotive locksmith shop or your local dealership. There are no onboard programming instructions available for 2004 TOYOTA Camry chip key. Only a professional with special tools can make it work for your vehicle. PLEASE MAKE SURE THAT YOUR CURRENT KEY HAS A DOT STAMP ON THE BLADE.